On Tuesday, the latest Job Openings and Labour Turnover Survey — or JOLTS — report showed there were 5.757 million jobs available in the US in March, a near record.

And while the abundance of jobs is often interpreted as a sign of strength in the labour market, there’s a persistent and growing gap between the number of jobs available and the number of hires being made that points to a nagging skills gap in the US labour market.

Institutional Investor just released its annual list of the top earning hedge fund managers for 2015. Here are the highlights:

US investigating market-making operations of Citadel, KCG – Federal authorities are investigating the market-making arms of Citadel and KCG, looking into the possibility that the two giants of electronic trading are giving small investors a poor deal when executing stock transactions on their behalf.

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